chore(deps): update setuptools requirement (#2371)

Updates the requirements on [setuptools](https://github.com/pypa/setuptools) to permit the latest version.
- [Release notes](https://github.com/pypa/setuptools/releases)
- [Changelog](https://github.com/pypa/setuptools/blob/main/CHANGES.rst)
- [Commits](https://github.com/pypa/setuptools/commits)

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

packages/@jsii/python-runtime/requirements.txt

@@ -2,7 +2,7 @@ black~=20.8b1
 pytest~=6.2
 pytest-mypy~=0.8
 pip~=20.3
-setuptools~=51.0
+setuptools~=51.1
 wheel~=0.36
 
 -e .